1.

A vector bar(a) has components 2p and 1 w.r.t a rectangular cartesian system. It is rotated through a certain angle about the origin in the counter clockwise direction. With respect to the new system, if bar(a) has components p +1, 1 then p =

Answer»

`(1, (-1)/3)`
`(1, 1/3)`
`(-1, 1/3)`
`(-1, (-1)/3)`

ANSWER :A


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